Cluster Server 7.4 Agent for EMC SRDF Configuration Guide - Windows

Last Published:
Product(s): InfoScale & Storage Foundation (7.4.1)
Platform: Windows
  1. Introducing the agent for EMC SRDF
    1.  
      About the agent for EMC SRDF
    2.  
      Supported hardware for EMC SRDF
    3.  
      Supported software
    4.  
      Typical EMC SRDF setup in a VCS cluster
    5. EMC SRDF agent functions
      1.  
        About the EMC SRDF agent's online function
      2.  
        About dynamic swap support for the EMC SRDF agent
    6.  
      Installing the agent for EMC SRDF
  2. Configuring the agent for EMC SRDF
    1. Configuration concepts for the EMC SRDF agent
      1.  
        Resource type definition for the EMC SRDF agent
      2. Attribute definitions for the SRDF agent
        1.  
          Required attributes
        2.  
          Optional attributes
        3.  
          Internal attributes
      3.  
        Sample configuration for the EMC SRDF agent
    2. Before you configure the agent for EMC SRDF
      1.  
        About cluster heartbeats
      2.  
        About configuring system zones in replicated data clusters
      3.  
        About preventing split-brain
    3. Configuring the agent for EMC SRDF
      1. Configuring the agent manually in a global cluster
        1.  
          Configuring the Symm heartbeat on each cluster
      2.  
        Configuring the agent manually in a replicated data cluster
      3.  
        Setting the OnlineTimeout attribute for the SRDF resource
      4.  
        Additional configuration considerations for the SRDF agent
  3. Testing VCS disaster recovery support with EMC SRDF
    1. How VCS recovers from various disasters in an HA/DR setup with EMC SRDF
      1.  
        Failure scenarios in global clusters
      2.  
        Failure scenarios in replicated data clusters
    2.  
      Testing the global service group migration
    3.  
      Testing disaster recovery after host failure
    4.  
      Testing disaster recovery after site failure
    5.  
      Performing failback after a node failure or an application failure
    6.  
      Performing failback after a site failure
  4. Setting up fire drill
    1.  
      About fire drills
    2.  
      Fire drill configurations
    3. About the SRDFSnap agent
      1.  
        SRDFSnap agent functions
      2.  
        Resource type definition for the SRDFSnap agent
      3.  
        Attribute definitions for the SRDFSnap agent
      4.  
        About the Snapshot attributes
      5.  
        Sample configuration for a fire drill service group
    4.  
      Additional considerations for running a fire drill
    5.  
      Before you configure the fire drill service group
    6. Configuring the fire drill service group
      1.  
        About the Fire Drill wizard
    7.  
      Verifying a successful fire drill

Attribute definitions for the SRDFSnap agent

To customize the behavior of the SRDFSnap agent, configure the following attributes:

TargetResName

Name of the resource managing the LUNs that you want to take snapshot of. Set this attribute to the name of the SRDF resource if you want to take a snapshot of replicated data. Set this attribute to the name of the DiskGroup resource if the data is not replicated.

For example, in a typical database setup, you might replicate data files and redo logs, but you may choose to avoid replicating temporary tablespaces. The temporary tablespace must still exist at the DR site and may be part of its own disk group.

Type-dimension: string-scalar

MountSnapshot

Specifies whether the resource uses the snapshot to bring the service group online. Set this attribute to 1.

Type-Dimension: integer-scalar

Note:

Set this attribute to 1 only if UseSnapshot is set to 1.

UseSnapshot

Specifies whether the SRDFSnap resource takes a local snapshot of the target array. Set this attribute to 1.

Type-Dimension: integer-scalar

See About the Snapshot attributes.

RequireSnapshot

Specifies whether the SRDFSnap resource must take a snapshot before coming online.

Set this attribute to 1 if you want the resource to come online only after it succeeds in taking a snapshot.

Type-Dimension: integer-scalar

Note:

Set this attribute to 1 only if UseSnapshot is set to 1.

  

DiskGroupSnapList

This is an optional attribute that lists the original disk group names and the fire drill disk group names.

Type-dimension: string-scalar

CopyMode

Indicates the array snapshot technology to be used.

  • mirror indicates TimeFinder/Mirror

  • clone indicates TimeFinder/Clone

  • snap indicates TimeFinder/Snap

Type-dimension: string-scalar

Default: 0

UseTgt

Indicates whether the agent should use target devices or BCVs in the device group.

0 indicates BCV devices, 1 indicates target devices.

Type-dimension: integer-scalar

Default: 0

Responsibility

Do not modify. For internal use only.

Used by the agent to keep track of resynchonizing snapshots.

Type-Dimension: temporary string

FDFile

Do not modify. For internal use only.

Used by the agent to store the absolute pathname to the file with the latest fire drill report on the local system.

Type-Dimension: temporary string